78944243793 has 8 divisors (see below), whose sum is σ = 105348123456. Its totient is φ = 52584930000.

The previous prime is 78944243771. The next prime is 78944243827. The reversal of 78944243793 is 39734244987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78944243793 - 2⁹ = 78944243281 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78944243713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11137333 + ... + 11144418.

It is an arithmetic number, because the mean of its divisors is an integer number (13168515432).

Almost surely, 2^78944243793 is an apocalyptic number.

It is an amenable number.

78944243793 is a deficient number, since it is larger than the sum of its proper divisors (26403879663).

78944243793 is a wasteful number, since it uses less digits than its factorization.

78944243793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22282935.

The product of its digits is 36578304, while the sum is 60.

The spelling of 78944243793 in words is "seventy-eight billion, nine hundred forty-four million, two hundred forty-three thousand, seven hundred ninety-three".